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containedcritical

Malicious code in @antv/gi-assets-basic (npm)

A threat actor compromised the npm account 'atool' and published 631 malicious versions across 314 npm packages, including @antv/gi-assets-basic, in an automated 22-minute burst. Each malicious version injects a preinstall hook executing an obfuscated Bun script that exfiltrates credentials and establishes persistence via CI/CD workflow injection and system daemons.

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Disclosed
Last updated
Blast radius
631 malicious versions across 314 npm packages; widespread credential theft affecting AWS, GitHub, npm, GCP, Azure, Kubernetes, SSH, Docker, databases, Stripe, and Slack
Ecosystems
npmOther
Attack vectors
Account takeoverCompromised packageMalicious commit
Threat actor
Mini Shai Hulud
Affected entities
  • @antv/gi-assets-basicMalicious preinstall hook injected; part of Mini Shai-Hulud campaign

The npm account atool was compromised as part of the "Mini Shai-Hulud" supply chain attack campaign. The threat actor published 631 malicious versions across 314 npm packages in an automated 22-minute burst, including @antv/gi-assets-basic.

Each malicious version injects a preinstall hook that executes a 498KB obfuscated Bun script. The script uses the GitHub API as a covert exfiltration channel to steal credentials including AWS keys, GitHub PATs, npm tokens, GCP service accounts, Azure credentials, Kubernetes service account tokens, SSH keys, Docker auth configs, database connection strings, Stripe keys, and Slack tokens. Stolen credentials are committed to attacker-controlled repositories following Dune-themed naming patterns (e.g., harkonnen-melange-742).

The attack establishes persistence through multiple mechanisms: CI/CD workflow injection (a GitHub Actions workflow named Run Copilot dumps all secrets via toJSON(secrets)), AI agent session hooks, and a system daemon named kitty-monitor.

The compromise was detected by Amazon Inspector and Google Open Source Security, confirming the malicious nature of the affected packages.

Indicators of compromise

Packages
  • @antv/gi-assets-basic

Remediation

  • Immediately audit and revoke all credentials (AWS keys, GitHub PATs, npm tokens, GCP service accounts, Azure credentials, Kubernetes tokens, SSH keys, Docker configs, database credentials, Stripe keys, Slack tokens) that may have been exposed
  • Remove all versions of @antv/gi-assets-basic and other affected packages from npm; do not install or update to any version published during the attack window
  • Scan CI/CD systems for the 'Run Copilot' GitHub Actions workflow and remove any unauthorized workflows
  • Search for and remove the 'kitty-monitor' system daemon from affected systems
  • Review git commit history for suspicious commits to attacker-controlled repositories with Dune-themed names
  • Rotate all secrets and credentials in environment variables and CI/CD systems
  • Monitor for unauthorized access using stolen credentials across all cloud and SaaS platforms

Sources

  1. GitHub Advisory GHSA-rfxr-237g-2fr7 · GitHub Advisory Database

Cite this entry

"Malicious code in @antv/gi-assets-basic (npm)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 27, 2026; last updated July 27, 2026. https://supplychainattack.org/incident/malicious-code-in-antv-gi-assets-basic-npm-1kzxob

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